TSTP Solution File: SWC312-1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : SWC312-1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s

% Computer : n023.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Aug 31 18:43:05 EDT 2022

% Result   : Unsatisfiable 0.23s 0.52s
% Output   : Refutation 0.23s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   19
%            Number of leaves      :   14
% Syntax   : Number of formulae    :   61 (  17 unt;   0 def)
%            Number of atoms       :  131 (  78 equ)
%            Maximal formula atoms :    5 (   2 avg)
%            Number of connectives :  144 (  74   ~;  70   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    5 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :   12 (  12 usr;  10 con; 0-2 aty)
%            Number of variables   :   14 (  14   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f289,plain,
    $false,
    inference(subsumption_resolution,[],[f288,f283]) ).

fof(f283,plain,
    nil = app(sk6,sF0),
    inference(backward_demodulation,[],[f226,f282]) ).

fof(f282,plain,
    nil = sF1,
    inference(resolution,[],[f274,f275]) ).

fof(f275,plain,
    neq(nil,nil),
    inference(trivial_inequality_removal,[],[f272]) ).

fof(f272,plain,
    ( nil != nil
    | neq(nil,nil) ),
    inference(backward_demodulation,[],[f261,f269]) ).

fof(f269,plain,
    nil = sk1,
    inference(trivial_inequality_removal,[],[f268]) ).

fof(f268,plain,
    ( nil = sk1
    | nil != nil ),
    inference(superposition,[],[f242,f260]) ).

fof(f260,plain,
    nil = sk4,
    inference(backward_demodulation,[],[f190,f258]) ).

fof(f258,plain,
    nil = sk2,
    inference(subsumption_resolution,[],[f257,f249]) ).

fof(f249,plain,
    ( sk1 = sF1
    | nil = sk2 ),
    inference(resolution,[],[f241,f197]) ).

fof(f197,axiom,
    ( neq(sk2,nil)
    | nil = sk2 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_12) ).

fof(f241,plain,
    ( ~ neq(sk2,nil)
    | sk1 = sF1 ),
    inference(backward_demodulation,[],[f240,f191]) ).

fof(f191,axiom,
    sk1 = sk3,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_6) ).

fof(f240,plain,
    ( ~ neq(sk2,nil)
    | sk3 = sF1 ),
    inference(forward_demodulation,[],[f227,f190]) ).

fof(f227,plain,
    ( ~ neq(sk4,nil)
    | sk3 = sF1 ),
    inference(definition_folding,[],[f196,f226,f225]) ).

fof(f225,plain,
    cons(sk5,nil) = sF0,
    introduced(function_definition,[]) ).

fof(f196,axiom,
    ( ~ neq(sk4,nil)
    | sk3 = app(sk6,cons(sk5,nil)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_11) ).

fof(f257,plain,
    ( nil = sk2
    | sk1 != sF1 ),
    inference(superposition,[],[f256,f226]) ).

fof(f256,plain,
    ( sk1 != app(sk6,sF0)
    | nil = sk2 ),
    inference(subsumption_resolution,[],[f255,f251]) ).

fof(f251,plain,
    ( sk2 = sF2
    | nil = sk2 ),
    inference(resolution,[],[f244,f197]) ).

fof(f244,plain,
    ( ~ neq(sk2,nil)
    | sk2 = sF2 ),
    inference(forward_demodulation,[],[f243,f190]) ).

fof(f243,plain,
    ( ~ neq(sk4,nil)
    | sk2 = sF2 ),
    inference(forward_demodulation,[],[f229,f190]) ).

fof(f229,plain,
    ( sk4 = sF2
    | ~ neq(sk4,nil) ),
    inference(definition_folding,[],[f195,f228,f225]) ).

fof(f228,plain,
    app(sF0,sk6) = sF2,
    introduced(function_definition,[]) ).

fof(f195,axiom,
    ( sk4 = app(cons(sk5,nil),sk6)
    | ~ neq(sk4,nil) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_10) ).

fof(f255,plain,
    ( nil = sk2
    | sk2 != sF2
    | sk1 != app(sk6,sF0) ),
    inference(subsumption_resolution,[],[f254,f248]) ).

fof(f248,plain,
    ( ssList(sk6)
    | nil = sk2 ),
    inference(resolution,[],[f197,f238]) ).

fof(f238,plain,
    ( ~ neq(sk2,nil)
    | ssList(sk6) ),
    inference(backward_demodulation,[],[f194,f190]) ).

fof(f194,axiom,
    ( ~ neq(sk4,nil)
    | ssList(sk6) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_9) ).

fof(f254,plain,
    ( ~ ssList(sk6)
    | sk1 != app(sk6,sF0)
    | nil = sk2
    | sk2 != sF2 ),
    inference(superposition,[],[f253,f228]) ).

fof(f253,plain,
    ! [X0] :
      ( sk2 != app(sF0,X0)
      | nil = sk2
      | sk1 != app(X0,sF0)
      | ~ ssList(X0) ),
    inference(subsumption_resolution,[],[f252,f247]) ).

fof(f247,plain,
    ( ssItem(sk5)
    | nil = sk2 ),
    inference(resolution,[],[f197,f239]) ).

fof(f239,plain,
    ( ~ neq(sk2,nil)
    | ssItem(sk5) ),
    inference(backward_demodulation,[],[f193,f190]) ).

fof(f193,axiom,
    ( ~ neq(sk4,nil)
    | ssItem(sk5) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_8) ).

fof(f252,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | nil = sk2
      | sk2 != app(sF0,X0)
      | ~ ssItem(sk5)
      | sk1 != app(X0,sF0) ),
    inference(superposition,[],[f198,f225]) ).

fof(f198,axiom,
    ! [X6,X7] :
      ( sk2 != app(cons(X6,nil),X7)
      | nil = sk2
      | ~ ssItem(X6)
      | sk1 != app(X7,cons(X6,nil))
      | ~ ssList(X7) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_13) ).

fof(f190,axiom,
    sk2 = sk4,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_5) ).

fof(f242,plain,
    ( nil != sk4
    | nil = sk1 ),
    inference(backward_demodulation,[],[f192,f191]) ).

fof(f192,axiom,
    ( nil = sk3
    | nil != sk4 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_7) ).

fof(f261,plain,
    ( neq(nil,nil)
    | nil != sk1 ),
    inference(backward_demodulation,[],[f199,f258]) ).

fof(f199,axiom,
    ( nil != sk1
    | neq(sk2,nil) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_14) ).

fof(f274,plain,
    ( ~ neq(nil,nil)
    | nil = sF1 ),
    inference(backward_demodulation,[],[f265,f269]) ).

fof(f265,plain,
    ( sk1 = sF1
    | ~ neq(nil,nil) ),
    inference(backward_demodulation,[],[f241,f258]) ).

fof(f226,plain,
    sF1 = app(sk6,sF0),
    introduced(function_definition,[]) ).

fof(f288,plain,
    nil != app(sk6,sF0),
    inference(subsumption_resolution,[],[f287,f278]) ).

fof(f278,plain,
    ssList(sk6),
    inference(resolution,[],[f263,f275]) ).

fof(f263,plain,
    ( ~ neq(nil,nil)
    | ssList(sk6) ),
    inference(backward_demodulation,[],[f238,f258]) ).

fof(f287,plain,
    ( ~ ssList(sk6)
    | nil != app(sk6,sF0) ),
    inference(trivial_inequality_removal,[],[f286]) ).

fof(f286,plain,
    ( nil != app(sk6,sF0)
    | ~ ssList(sk6)
    | nil != nil ),
    inference(superposition,[],[f285,f281]) ).

fof(f281,plain,
    nil = app(sF0,sk6),
    inference(backward_demodulation,[],[f228,f280]) ).

fof(f280,plain,
    nil = sF2,
    inference(resolution,[],[f267,f275]) ).

fof(f267,plain,
    ( ~ neq(nil,nil)
    | nil = sF2 ),
    inference(forward_demodulation,[],[f266,f258]) ).

fof(f266,plain,
    ( sk2 = sF2
    | ~ neq(nil,nil) ),
    inference(backward_demodulation,[],[f244,f258]) ).

fof(f285,plain,
    ! [X0] :
      ( nil != app(sF0,X0)
      | nil != app(X0,sF0)
      | ~ ssList(X0) ),
    inference(subsumption_resolution,[],[f284,f279]) ).

fof(f279,plain,
    ssItem(sk5),
    inference(resolution,[],[f264,f275]) ).

fof(f264,plain,
    ( ~ neq(nil,nil)
    | ssItem(sk5) ),
    inference(backward_demodulation,[],[f239,f258]) ).

fof(f284,plain,
    ! [X0] :
      ( ~ ssItem(sk5)
      | ~ ssList(X0)
      | nil != app(sF0,X0)
      | nil != app(X0,sF0) ),
    inference(superposition,[],[f276,f225]) ).

fof(f276,plain,
    ! [X6,X7] :
      ( nil != app(cons(X6,nil),X7)
      | ~ ssItem(X6)
      | ~ ssList(X7)
      | nil != app(X7,cons(X6,nil)) ),
    inference(subsumption_resolution,[],[f273,f269]) ).

fof(f273,plain,
    ! [X6,X7] :
      ( ~ ssItem(X6)
      | nil != app(cons(X6,nil),X7)
      | ~ ssList(X7)
      | nil != sk1
      | nil != app(X7,cons(X6,nil)) ),
    inference(backward_demodulation,[],[f262,f269]) ).

fof(f262,plain,
    ! [X6,X7] :
      ( sk1 != app(X7,cons(X6,nil))
      | nil != app(cons(X6,nil),X7)
      | nil != sk1
      | ~ ssList(X7)
      | ~ ssItem(X6) ),
    inference(backward_demodulation,[],[f200,f258]) ).

fof(f200,axiom,
    ! [X6,X7] :
      ( nil != sk1
      | sk1 != app(X7,cons(X6,nil))
      | ~ ssList(X7)
      | sk2 != app(cons(X6,nil),X7)
      | ~ ssItem(X6) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_15) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.13  % Problem    : SWC312-1 : TPTP v8.1.0. Released v2.4.0.
% 0.08/0.14  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.15/0.36  % Computer : n023.cluster.edu
% 0.15/0.36  % Model    : x86_64 x86_64
% 0.15/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.36  % Memory   : 8042.1875MB
% 0.15/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.36  % CPULimit   : 300
% 0.15/0.36  % WCLimit    : 300
% 0.15/0.36  % DateTime   : Tue Aug 30 19:06:50 EDT 2022
% 0.15/0.36  % CPUTime    : 
% 0.23/0.49  % (32620)dis+10_1:1_fsd=on:sp=occurrence:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/7Mi)
% 0.23/0.49  % (32620)Instruction limit reached!
% 0.23/0.49  % (32620)------------------------------
% 0.23/0.49  % (32620)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.23/0.50  % (32628)ott+11_2:3_av=off:fde=unused:nwc=5.0:tgt=ground:i=75:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/75Mi)
% 0.23/0.50  % (32620)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.23/0.50  % (32620)Termination reason: Unknown
% 0.23/0.50  % (32620)Termination phase: Saturation
% 0.23/0.50  
% 0.23/0.50  % (32620)Memory used [KB]: 5628
% 0.23/0.50  % (32620)Time elapsed: 0.081 s
% 0.23/0.50  % (32620)Instructions burned: 7 (million)
% 0.23/0.50  % (32620)------------------------------
% 0.23/0.50  % (32620)------------------------------
% 0.23/0.50  % (32636)ott+11_1:1_drc=off:nwc=5.0:slsq=on:slsqc=1:spb=goal_then_units:to=lpo:i=467:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/467Mi)
% 0.23/0.52  % (32628)First to succeed.
% 0.23/0.52  % (32628)Refutation found. Thanks to Tanya!
% 0.23/0.52  % SZS status Unsatisfiable for theBenchmark
% 0.23/0.52  % SZS output start Proof for theBenchmark
% See solution above
% 0.23/0.52  % (32628)------------------------------
% 0.23/0.52  % (32628)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.23/0.52  % (32628)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.23/0.52  % (32628)Termination reason: Refutation
% 0.23/0.52  
% 0.23/0.52  % (32628)Memory used [KB]: 1279
% 0.23/0.52  % (32628)Time elapsed: 0.108 s
% 0.23/0.52  % (32628)Instructions burned: 12 (million)
% 0.23/0.52  % (32628)------------------------------
% 0.23/0.52  % (32628)------------------------------
% 0.23/0.52  % (32612)Success in time 0.154 s
%------------------------------------------------------------------------------